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The Orca Edge was an early example of a dive computer that ran a real time algorithm. [2] Designed by Craig Barshinger , Karl E. Huggins and Paul Heinmiller, the Edge did not display a decompression plan, but instead showed the ceiling or the so-called "safe-ascent-depth" and a graphic display of calculated tissue gas loadings.
Dive computers are a development from decompression tables, the diver's watch and depth gauge, with greater accuracy and the ability to monitor dive profile data in real time. [3] Most dive computers use real-time ambient pressure input to a decompression algorithm to indicate the remaining time to the no-stop limit, and after that has passed ...
It has been argued that the lack of necessity to purchase a dive computer reduces DIR costs (Jablonski: "Dive computers are expensive, and prevent divers with limited resources from purchasing truly useful equipment" [90] "), it has also been argued that the lack of a dive computer adds to the risk of diving for recreational divers. [91]
Oceanic developed the first HUD style mask, which is an eyes-and-nose diving mask with a built-in LCD display, commercially known as a DataMask, capable of providing various dive data from an on-board diving computer.
Dive planning is the process of planning an underwater diving operation. The purpose of dive planning is to increase the probability that a dive will be completed safely and the goals achieved. [1] Some form of planning is done for most underwater dives, but the complexity and detail considered may vary enormously. [2]
The idea was born when Krasny took a small ad in a free-circulation newspaper to sell his computer and printer. It later became Computer Discount Warehouse and then simply CDW. [2] In 2005, CDW launched BizTech magazine, which it publishes on quarterly basis. [3]
The US Navy has used several decompression models from which their published decompression tables and authorized diving computer algorithms have been derived. The original C&R tables used a classic multiple independent parallel compartment model based on the work of J.S.Haldane in England in the early 20th century, using a critical ratio exponential ingassing and outgassing model.
In 2018, PADI launched PADI Travel, an online dive travel resource and booking platform for dive resort and live-aboard packages. [17] In 2021, PADI reported it had a membership of over 128,000 professional members and 6,600 dive centers, and had awarded more than 28 million diving certifications internationally.
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